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44691e6f AB |
1 | =encoding utf8 |
2 | ||
3 | =head1 NAME | |
4 | ||
e5998677 SH |
5 | [ this is a template for a new perldelta file. Any text flagged as XXX needs |
6 | to be processed before release. ] | |
7 | ||
8 | perldelta - what is new for perl v5.21.11 | |
c68523cb | 9 | |
238894db | 10 | =head1 DESCRIPTION |
c68523cb | 11 | |
e5998677 | 12 | This document describes differences between the 5.21.10 release and the 5.21.11 |
238894db | 13 | release. |
c68523cb | 14 | |
e5998677 SH |
15 | If you are upgrading from an earlier release such as 5.21.9, first read |
16 | L<perl52110delta>, which describes differences between 5.21.9 and 5.21.10. | |
2ec11c70 | 17 | |
e5998677 | 18 | =head1 Notice |
ef8784b7 | 19 | |
e5998677 | 20 | XXX Any important notices here |
6798c95d | 21 | |
e5998677 | 22 | =head1 Core Enhancements |
6798c95d | 23 | |
e5998677 SH |
24 | XXX New core language features go here. Summarize user-visible core language |
25 | enhancements. Particularly prominent performance optimisations could go | |
26 | here, but most should go in the L</Performance Enhancements> section. | |
cd7bac54 | 27 | |
e5998677 | 28 | [ List each enhancement as a =head2 entry ] |
cd7bac54 | 29 | |
e5998677 | 30 | =head1 Security |
0939a951 | 31 | |
e5998677 SH |
32 | XXX Any security-related notices go here. In particular, any security |
33 | vulnerabilities closed should be noted here rather than in the | |
34 | L</Selected Bug Fixes> section. | |
cd7bac54 | 35 | |
e5998677 | 36 | [ List each security issue as a =head2 entry ] |
cd7bac54 | 37 | |
e5998677 | 38 | =head1 Incompatible Changes |
cd7bac54 | 39 | |
e5998677 | 40 | XXX For a release on a stable branch, this section aspires to be: |
83a5d6b6 | 41 | |
e5998677 SH |
42 | There are no changes intentionally incompatible with 5.XXX.XXX |
43 | If any exist, they are bugs, and we request that you submit a | |
44 | report. See L</Reporting Bugs> below. | |
83a5d6b6 | 45 | |
e5998677 | 46 | [ List each incompatible change as a =head2 entry ] |
b9c683b3 | 47 | |
e5998677 | 48 | =head1 Deprecations |
b9c683b3 | 49 | |
e5998677 | 50 | XXX Any deprecated features, syntax, modules etc. should be listed here. |
b9c683b3 | 51 | |
2e4abf26 DG |
52 | =head2 Making all warnings fatal is discouraged |
53 | ||
54 | The documentation for L<fatal warnings|warnings/Fatal Warnings> notes | |
55 | that C<< use warnings FATAL => 'all' >> is discouraged | |
56 | and provides stronger language about the risks of fatal warnings | |
57 | in general. | |
58 | ||
e5998677 | 59 | =head2 Module removals |
b05565aa | 60 | |
e5998677 | 61 | XXX Remove this section if inapplicable. |
b05565aa | 62 | |
e5998677 SH |
63 | The following modules will be removed from the core distribution in a |
64 | future release, and will at that time need to be installed from CPAN. | |
65 | Distributions on CPAN which require these modules will need to list them as | |
66 | prerequisites. | |
79116533 | 67 | |
e5998677 SH |
68 | The core versions of these modules will now issue C<"deprecated">-category |
69 | warnings to alert you to this fact. To silence these deprecation warnings, | |
70 | install the modules in question from CPAN. | |
79116533 | 71 | |
e5998677 SH |
72 | Note that these are (with rare exceptions) fine modules that you are encouraged |
73 | to continue to use. Their disinclusion from core primarily hinges on their | |
74 | necessity to bootstrapping a fully functional, CPAN-capable Perl installation, | |
75 | not usually on concerns over their design. | |
79116533 | 76 | |
e5998677 | 77 | =over |
79116533 | 78 | |
e5998677 | 79 | =item XXX |
79116533 | 80 | |
e5998677 SH |
81 | XXX Note that deprecated modules should be listed here even if they are listed |
82 | as an updated module in the L</Modules and Pragmata> section. | |
79116533 | 83 | |
e5998677 | 84 | =back |
79116533 | 85 | |
e5998677 | 86 | [ List each other deprecation as a =head2 entry ] |
79116533 | 87 | |
e5998677 | 88 | =head1 Performance Enhancements |
79116533 | 89 | |
e5998677 SH |
90 | XXX Changes which enhance performance without changing behaviour go here. |
91 | There may well be none in a stable release. | |
79116533 | 92 | |
e5998677 | 93 | [ List each enhancement as a =item entry ] |
79116533 | 94 | |
e5998677 | 95 | =over 4 |
79116533 SH |
96 | |
97 | =item * | |
98 | ||
e5998677 | 99 | XXX |
79116533 SH |
100 | |
101 | =back | |
0939a951 | 102 | |
e5998677 | 103 | =head1 Modules and Pragmata |
fea59588 | 104 | |
e5998677 SH |
105 | XXX All changes to installed files in F<cpan/>, F<dist/>, F<ext/> and F<lib/> |
106 | go here. If Module::CoreList is updated, generate an initial draft of the | |
107 | following sections using F<Porting/corelist-perldelta.pl>. A paragraph summary | |
108 | for important changes should then be added by hand. In an ideal world, | |
109 | dual-life modules would have a F<Changes> file that could be cribbed. | |
fea59588 | 110 | |
e5998677 | 111 | [ Within each section, list entries as a =item entry ] |
83a5d6b6 | 112 | |
e5998677 | 113 | =head2 New Modules and Pragmata |
83a5d6b6 | 114 | |
e5998677 | 115 | =over 4 |
338906ce SH |
116 | |
117 | =item * | |
118 | ||
e5998677 | 119 | XXX |
b05565aa | 120 | |
e5998677 | 121 | =back |
83a5d6b6 | 122 | |
e5998677 | 123 | =head2 Updated Modules and Pragmata |
83a5d6b6 | 124 | |
e5998677 | 125 | =over 4 |
e455391f SH |
126 | |
127 | =item * | |
128 | ||
79a77127 | 129 | L<attributes> has been upgraded from version 0.26 to 0.27. |
53902397 | 130 | |
79a77127 SH |
131 | =item * |
132 | ||
133 | L<Cwd> has been upgraded from version 3.55 to 3.56. | |
83a5d6b6 | 134 | |
abec5bed DIM |
135 | =item * |
136 | ||
137 | L<ExtUtils::Miniperl> has been upgraded from version 1.04 to 1.05. | |
138 | ||
139 | =item * | |
140 | ||
60dcce55 SH |
141 | L<IO::Socket::IP> has been upgraded from version 0.36 to 0.37. |
142 | ||
143 | =item * | |
144 | ||
79a77127 SH |
145 | L<Module::CoreList> has been upgraded from version 5.20150320 to 5.20150420. |
146 | ||
147 | Updated to cover the latest releases of Perl. | |
abec5bed DIM |
148 | |
149 | =item * | |
150 | ||
151 | L<PerlIO::mmap> has been upgraded from version 0.013 to 0.014. | |
152 | ||
153 | =item * | |
154 | ||
79a77127 | 155 | L<utf8> has been upgraded from version 1.15 to 1.16. |
abec5bed | 156 | |
2e4abf26 DG |
157 | =item * |
158 | ||
159 | L<warnings> has been upgraded from version 1.31 to 1.32. | |
160 | ||
81baec77 JK |
161 | =item * |
162 | ||
163 | L<ExtUtils::ParseXS> has been upgraded from version 3.27 (with certain | |
164 | components which were at version 3.25) to version 3.28. | |
165 | ||
e5998677 | 166 | =back |
83a5d6b6 | 167 | |
e5998677 | 168 | =head2 Removed Modules and Pragmata |
83a5d6b6 | 169 | |
e5998677 | 170 | =over 4 |
83a5d6b6 SH |
171 | |
172 | =item * | |
173 | ||
e5998677 | 174 | XXX |
83a5d6b6 | 175 | |
e5998677 | 176 | =back |
83a5d6b6 | 177 | |
e5998677 | 178 | =head1 Documentation |
83a5d6b6 | 179 | |
e5998677 SH |
180 | XXX Changes to files in F<pod/> go here. Consider grouping entries by |
181 | file and be sure to link to the appropriate page, e.g. L<perlfunc>. | |
83a5d6b6 | 182 | |
e5998677 | 183 | =head2 New Documentation |
b367c45d | 184 | |
e5998677 | 185 | XXX Changes which create B<new> files in F<pod/> go here. |
b367c45d | 186 | |
e5998677 | 187 | =head3 L<XXX> |
b367c45d | 188 | |
e5998677 | 189 | XXX Description of the purpose of the new file here |
338906ce | 190 | |
e5998677 | 191 | =head2 Changes to Existing Documentation |
338906ce | 192 | |
e5998677 SH |
193 | XXX Changes which significantly change existing files in F<pod/> go here. |
194 | However, any changes to F<pod/perldiag.pod> should go in the L</Diagnostics> | |
195 | section. | |
83a5d6b6 | 196 | |
e5998677 | 197 | =head3 L<XXX> |
83a5d6b6 | 198 | |
e5998677 | 199 | =over 4 |
83a5d6b6 SH |
200 | |
201 | =item * | |
202 | ||
e5998677 | 203 | XXX Description of the change here |
83a5d6b6 | 204 | |
e5998677 | 205 | =back |
338906ce | 206 | |
e5998677 | 207 | =head1 Diagnostics |
338906ce | 208 | |
e5998677 SH |
209 | The following additions or changes have been made to diagnostic output, |
210 | including warnings and fatal error messages. For the complete list of | |
211 | diagnostic messages, see L<perldiag>. | |
338906ce | 212 | |
e5998677 SH |
213 | XXX New or changed warnings emitted by the core's C<C> code go here. Also |
214 | include any changes in L<perldiag> that reconcile it to the C<C> code. | |
338906ce | 215 | |
e5998677 | 216 | =head2 New Diagnostics |
9409f752 | 217 | |
e5998677 SH |
218 | XXX Newly added diagnostic messages go under here, separated into New Errors |
219 | and New Warnings | |
9409f752 | 220 | |
e5998677 | 221 | =head3 New Errors |
03a97c81 | 222 | |
e5998677 | 223 | =over 4 |
03a97c81 SH |
224 | |
225 | =item * | |
226 | ||
e5998677 | 227 | XXX L<message|perldiag/"message"> |
a790e348 | 228 | |
e5998677 | 229 | =back |
83a5d6b6 | 230 | |
e5998677 | 231 | =head3 New Warnings |
83a5d6b6 | 232 | |
e5998677 | 233 | =over 4 |
126be117 JH |
234 | |
235 | =item * | |
236 | ||
e5998677 | 237 | XXX L<message|perldiag/"message"> |
83a5d6b6 | 238 | |
a9c3e753 | 239 | =back |
0939a951 | 240 | |
e5998677 | 241 | =head2 Changes to Existing Diagnostics |
d2fff9f6 | 242 | |
e5998677 | 243 | XXX Changes (i.e. rewording) of diagnostic messages go here |
e329daf3 | 244 | |
cd7bac54 | 245 | =over 4 |
e329daf3 | 246 | |
cd7bac54 | 247 | =item * |
e329daf3 | 248 | |
e5998677 | 249 | XXX Describe change here |
83a5d6b6 SH |
250 | |
251 | =back | |
252 | ||
e5998677 | 253 | =head1 Utility Changes |
83a5d6b6 | 254 | |
e5998677 SH |
255 | XXX Changes to installed programs such as F<perlbug> and F<xsubpp> go here. |
256 | Most of these are built within the directory F<utils>. | |
83a5d6b6 | 257 | |
e5998677 SH |
258 | [ List utility changes as a =head2 entry for each utility and =item |
259 | entries for each change | |
260 | Use L<XXX> with program names to get proper documentation linking. ] | |
83a5d6b6 | 261 | |
e5998677 | 262 | =head2 L<XXX> |
83a5d6b6 SH |
263 | |
264 | =over 4 | |
265 | ||
266 | =item * | |
267 | ||
e5998677 | 268 | XXX |
ba31029d | 269 | |
cd7bac54 S |
270 | =back |
271 | ||
e5998677 | 272 | =head1 Configuration and Compilation |
cd7bac54 | 273 | |
e5998677 SH |
274 | XXX Changes to F<Configure>, F<installperl>, F<installman>, and analogous tools |
275 | go here. Any other changes to the Perl build process should be listed here. | |
276 | However, any platform-specific changes should be listed in the | |
277 | L</Platform Support> section, instead. | |
cd7bac54 | 278 | |
e5998677 | 279 | [ List changes as a =item entry ]. |
cd7bac54 S |
280 | |
281 | =over 4 | |
282 | ||
283 | =item * | |
284 | ||
e5998677 | 285 | XXX |
cd7bac54 S |
286 | |
287 | =back | |
541e1e0d | 288 | |
a9c3e753 | 289 | =head1 Testing |
cd7bac54 | 290 | |
e5998677 SH |
291 | XXX Any significant changes to the testing of a freshly built perl should be |
292 | listed here. Changes which create B<new> files in F<t/> go here as do any | |
293 | large changes to the testing harness (e.g. when parallel testing was added). | |
294 | Changes to existing files in F<t/> aren't worth summarizing, although the bugs | |
295 | that they represent may be covered elsewhere. | |
296 | ||
297 | [ List each test improvement as a =item entry ] | |
298 | ||
b5d4d3b9 | 299 | =over 4 |
83b69bfd DD |
300 | |
301 | =item * | |
302 | ||
e5998677 | 303 | XXX |
13adb056 | 304 | |
b5d4d3b9 | 305 | =back |
391823f2 | 306 | |
a9c3e753 | 307 | =head1 Platform Support |
6c8457e9 | 308 | |
e5998677 | 309 | XXX Any changes to platform support should be listed in the sections below. |
fdcaecb7 | 310 | |
e5998677 SH |
311 | [ Within the sections, list each platform as a =item entry with specific |
312 | changes as paragraphs below it. ] | |
ce1e892e | 313 | |
e5998677 | 314 | =head2 New Platforms |
2af7c6b6 | 315 | |
e5998677 SH |
316 | XXX List any platforms that this version of perl compiles on, that previous |
317 | versions did not. These will either be enabled by new files in the F<hints/> | |
318 | directories, or new subdirectories and F<README> files at the top level of the | |
319 | source tree. | |
8c847e66 | 320 | |
2ff1ebfe | 321 | =over 4 |
d345f487 | 322 | |
e5998677 | 323 | =item XXX-some-platform |
d345f487 | 324 | |
e5998677 | 325 | XXX |
cd7bac54 | 326 | |
4dc623f0 | 327 | =back |
353075a0 | 328 | |
e5998677 | 329 | =head2 Discontinued Platforms |
9f122eef | 330 | |
e5998677 | 331 | XXX List any platforms that this version of perl no longer compiles on. |
2ec11c70 | 332 | |
e5998677 | 333 | =over 4 |
2ec11c70 | 334 | |
e5998677 | 335 | =item XXX-some-platform |
2683609f | 336 | |
e5998677 | 337 | XXX |
338906ce | 338 | |
4dc623f0 | 339 | =back |
c7f058f0 | 340 | |
e5998677 | 341 | =head2 Platform-Specific Notes |
2bf83140 | 342 | |
e5998677 SH |
343 | XXX List any changes for specific platforms. This could include configuration |
344 | and compilation changes or changes in portability/compatibility. However, | |
345 | changes within modules for platforms should generally be listed in the | |
346 | L</Modules and Pragmata> section. | |
041a5927 | 347 | |
e5998677 | 348 | =over 4 |
041a5927 | 349 | |
86e0176a | 350 | =item Win32 |
69e954a5 | 351 | |
86e0176a TC |
352 | F<miniperl.exe> is now built with C<-fno-strict-aliasing>, allowing |
353 | 64-bit builds to complete on GCC 4.8. [perl #123976] | |
354 | ||
355 | C<test-prep> again depends on C<test-prep-gcc> for GCC builds. [perl | |
356 | #124221] | |
69e954a5 | 357 | |
e5998677 | 358 | =back |
20b5e916 | 359 | |
e5998677 | 360 | =head1 Internal Changes |
d76c14eb | 361 | |
e5998677 SH |
362 | XXX Changes which affect the interface available to C<XS> code go here. Other |
363 | significant internal changes for future core maintainers should be noted as | |
364 | well. | |
d76c14eb | 365 | |
e5998677 | 366 | [ List each change as a =item entry ] |
d547bad0 | 367 | |
e5998677 | 368 | =over 4 |
d547bad0 | 369 | |
8a95d307 FC |
370 | =item * |
371 | ||
e5998677 | 372 | XXX |
8a95d307 | 373 | |
e5998677 | 374 | =back |
338906ce | 375 | |
e5998677 | 376 | =head1 Selected Bug Fixes |
338906ce | 377 | |
e5998677 SH |
378 | XXX Important bug fixes in the core language are summarized here. Bug fixes in |
379 | files in F<ext/> and F<lib/> are best summarized in L</Modules and Pragmata>. | |
338906ce | 380 | |
e5998677 | 381 | [ List each fix as a =item entry ] |
338906ce | 382 | |
e5998677 | 383 | =over 4 |
338906ce SH |
384 | |
385 | =item * | |
386 | ||
e42530d2 TC |
387 | C<pack("D", $x)> and C<pack("F", $x)> now zero the padding on x86 long |
388 | double builds. GCC 4.8 and later, under some build options, would | |
389 | either overwrite the zero-initialized padding, or bypass the | |
390 | initialized buffer entirely. This caused F<op/pack.t> to fail. [perl | |
391 | #123971] | |
2f304be9 | 392 | |
a9c3e753 | 393 | =back |
ea13b07e | 394 | |
a9c3e753 | 395 | =head1 Known Problems |
b65adbec | 396 | |
e5998677 SH |
397 | XXX Descriptions of platform agnostic bugs we know we can't fix go here. Any |
398 | tests that had to be C<TODO>ed for the release would be noted here. Unfixed | |
399 | platform specific bugs also go here. | |
b94c7836 | 400 | |
e5998677 | 401 | [ List each fix as a =item entry ] |
ce1e892e KW |
402 | |
403 | =over 4 | |
404 | ||
405 | =item * | |
406 | ||
e5998677 | 407 | XXX |
ce1e892e | 408 | |
e5998677 | 409 | =back |
ce1e892e | 410 | |
e5998677 | 411 | =head1 Errata From Previous Releases |
ce1e892e | 412 | |
e5998677 | 413 | =over 4 |
ce1e892e | 414 | |
e5998677 | 415 | =item * |
ce1e892e | 416 | |
e5998677 SH |
417 | XXX Add anything here that we forgot to add, or were mistaken about, in |
418 | the perldelta of a previous release. | |
ce1e892e | 419 | |
a9c3e753 | 420 | =back |
e3e8f263 | 421 | |
e5998677 | 422 | =head1 Obituary |
0d42058e | 423 | |
e5998677 SH |
424 | XXX If any significant core contributor has died, we've added a short obituary |
425 | here. | |
0d42058e | 426 | |
e5998677 | 427 | =head1 Acknowledgements |
0d42058e | 428 | |
e5998677 | 429 | XXX Generate this with: |
0d42058e | 430 | |
e5998677 | 431 | perl Porting/acknowledgements.pl v5.21.10..HEAD |
f5b73711 | 432 | |
44691e6f AB |
433 | =head1 Reporting Bugs |
434 | ||
e08634c5 SH |
435 | If you find what you think is a bug, you might check the articles recently |
436 | posted to the comp.lang.perl.misc newsgroup and the perl bug database at | |
e5998677 SH |
437 | https://rt.perl.org/ . There may also be information at |
438 | http://www.perl.org/ , the Perl Home Page. | |
44691e6f | 439 | |
e08634c5 SH |
440 | If you believe you have an unreported bug, please run the L<perlbug> program |
441 | included with your release. Be sure to trim your bug down to a tiny but | |
442 | sufficient test case. Your bug report, along with the output of C<perl -V>, | |
443 | will be sent off to perlbug@perl.org to be analysed by the Perl porting team. | |
44691e6f AB |
444 | |
445 | If the bug you are reporting has security implications, which make it | |
e08634c5 SH |
446 | inappropriate to send to a publicly archived mailing list, then please send it |
447 | to perl5-security-report@perl.org. This points to a closed subscription | |
448 | unarchived mailing list, which includes all the core committers, who will be | |
449 | able to help assess the impact of issues, figure out a resolution, and help | |
f9001595 | 450 | co-ordinate the release of patches to mitigate or fix the problem across all |
e08634c5 SH |
451 | platforms on which Perl is supported. Please only use this address for |
452 | security issues in the Perl core, not for modules independently distributed on | |
453 | CPAN. | |
44691e6f AB |
454 | |
455 | =head1 SEE ALSO | |
456 | ||
e08634c5 SH |
457 | The F<Changes> file for an explanation of how to view exhaustive details on |
458 | what changed. | |
44691e6f AB |
459 | |
460 | The F<INSTALL> file for how to build Perl. | |
461 | ||
462 | The F<README> file for general stuff. | |
463 | ||
464 | The F<Artistic> and F<Copying> files for copyright information. | |
465 | ||
466 | =cut |